DK47462C
(en )
1933-06-19
Suction device in stone and clay mixed sand and gravel material.
FR747840A
(en )
1933-06-24
Tiles, rubble stones and slabs for construction
FR758040A
(en )
1934-01-09
Improvements in machines for the treatment of sand, gravel, stones and all similar materials
CA327727A
(en )
1932-11-22
Sand and gravel spreader
AU565822A
(en )
1922-07-04
Improvements in and connected with concrete blocks or stones for building purposes
ES126364A1
(en )
1932-05-16
Improvements in the manufacture of concrete blocks and similar.
FR719148A
(en )
1932-02-02
Improvement in slabs and concrete blocks
ES125691A1
(en )
1932-03-16
Composition of Tripoli-based material in combination with cement.
ES97233A1
(en )
1926-05-01
Improvements in the manufacture of concrete and similar materials.
ES97289A1
(en )
1926-05-16
Improvements in the manufacture of concrete and similar materials.
FR827804A
(en )
1938-05-04
Paving for roads, yards, quays and various applications
GR1231B
(en )
1926-07-08
IMPROVEMENTS IN TYPES OF TILES AND BRICKS.
FR41218E
(en )
1932-12-02
Fork shovel for shoveling gravel, dust and similar materials
ES127405A1
(en )
1932-08-16
Improvements in the paving of roads, roads, floors and similar.
GR3360B
(en )
1931-09-29
MANUFACTURE OF CONCRETE STONES, CONCRETE BUILDINGS AND CONCRETE TILES FOR THE CONSTRUCTION OF PERMANENT ROADS.
GB294760A
(en )
1928-08-02
An improvement in the manufacture of bricks and tiles
ES125480A3
(en )
1932-05-16
Improvements in the construction of road pavements and the like.
FR644108A
(en )
1928-10-02
Paving stone refinements
ES92671A3
(en )
1925-06-01
Improvement in cement-based paving and cladding material.
DK43791C
(en )
1931-03-02
Procedure for driving down cladding pipes and for casting concrete piles in the ground.
AU2029229A
(en )
1930-06-10
An improved cement penetration machine for use in road making and similar purposes
FR759910A
(en )
1934-02-13
Artificial paving stone for paving sidewalks and other applications
FR827902A
(en )
1938-05-06
Portable device for mixing concrete, cement, fertilizers, etc.
AU2159025A
(en )
1925-02-05
x Improvements in concrete and like roadways
NL30729C
(en )
1933-09-15
Machine for spreading sand, gravel and similar material on roads